May I suggest a small piece of uranium ore placed next to the clock? LOL.
Just kidding Jeff! I like Jon's idea, up the voltage/series resistor. On Thu, Nov 30, 2023 at 1:38 PM Jeff Walton <[email protected]> wrote: > Not dimmed. Tried to do a momentary hit on all segments to "wake" up the > tube and it helped some but the extra flash is distracting. > > On Thursday, November 30, 2023 at 9:04:36 AM UTC-6 Paul Andrews wrote: > >> Are they also dimmed using an LDR? If so, turn dimming off - if you have >> access to the source code, you could turn dimming off briefly when the >> clock turns on. >> >> On Wednesday, November 29, 2023 at 9:43:48 PM UTC-5 Jeff Walton wrote: >> >>> I've recently come across a situation where I have some tubes in a clock >>> that are being directly driven and are having trouble starting when the >>> room is darkened but light right up when a room light is turned on. These >>> particular tubes were probably intended for use in a calculator. They are >>> seven segment neon MG-17G tubes. Once the tubes have any of the segments >>> lit, there is really no issue with the performance. It's when the tubes go >>> completely dark if a space is used while scrolling a message or lighting a >>> dash on and off to emulate a colon. I'm wondering if others have found any >>> particular tricks to help convince tubes to light up. There is no >>> "baselighting" and the HV is ~172v. I'm considering increasing the HV by >>> 10-15v but don't want to over drive the tubes. Short of putting a >>> radioactive source in the vicinity, are there other things that anyone has >>> had any luck with? >>> >>> Jeff >>> >> -- > You received this message because you are subscribed to the Google Groups > "neonixie-l" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/69cbf16c-56c2-4785-b4d2-ab0f6bcb76e1n%40googlegroups.com > <https://groups.google.com/d/msgid/neonixie-l/69cbf16c-56c2-4785-b4d2-ab0f6bcb76e1n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/CAOX%2BRHKPrgPAGPbF1%2B2d0hNNp8Vk%3DXGe5OP5V2PropW0Oy7Xnw%40mail.gmail.com.
